TABLE 1.

Average treatment effect, Δ, and exposure-time-specific effect based on each of the five models

Exposure time	Model 1	Model 2	Model 3a	Model 4	Model 5
Average (Δ)b	θ	$\frac{1}{E}{\sum }_{e=1}^{E}e\omega$	$\frac{1}{E}({\pi }^{(1)}+(E-1){\pi }^{(2)})$	$\frac{1}{E}{\sum }_{e=1}^E{\theta }_e$	ϕ
1	θ	ω	π (1)	θ 1	ϕ + δ1
2	θ	2ω	π (2)	θ 2	ϕ + δ2
⋮	⋮	⋮	⋮	⋮	⋮
E	θ	E ω	π (2)	θ E	ϕ + δE

^aWe take the anticipated delay time ℓ = 1 here.

^bAverage effect is a simple average over all exposure-time-specific treatment effects.